Actions such as “open the door for someone” or “invite someone to have lunch with you” you can see the ripple effect of kindness. 

Random act of kindness (School)

• Write a positive note.

• Let someone go before you in line.

• Push in someone’s chair.

• Play with a “new” boy/girl.

• Say “Hello” to someone new.

• Thank an adult in the school for something they do.

• Make a card for your favourite teacher.

• Tell silly jokes to make someone laugh.

• Leave a happy or kindness note for someone to find.

• Feed the birds.

• Give someone a hug coupon (Example: Free hug for you!).

• Deliver a letter to a friend.

• Deliver flowers/sweets to a friend.

"The important thing is not WHAT you say, 

but HOW you say it."

Words can be considered as the key in our everyday communication.

The following video illustrates "THE POWER OF WORDS" to change your message and your effect on people.

As the woman from the video says:

"I wrote the same... but in different words."

Source: http://englishedrissis.blogspot.com.es/2011/04/power-of-words.html